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A-LevelEdexcel
Biology
Exam Questions
The Heart and Blood VesselsNewCardiac Cycle, Cardiac Output and Blood PressureNewBlood Clotting and Cardiovascular DiseaseNewCarbohydrates and Lipids in Diet and HealthNewProteins, Enzymes and Biological RolesNewEnergy Budgets, BMI and Waist-to-Hip RatioNewInterpreting Risk: Correlation, Causation and Health DataNewCore Practical 1: Caffeine and Daphnia Heart RateNewCore Practical 2: Vitamin C in Food and DrinkNew
Gas Exchange Surfaces and Fick’s LawNewThe Mammalian Lung: Ventilation and Gas ExchangeNewCell Membranes and the Fluid Mosaic ModelNewTransport Across Membranes: Diffusion to Active TransportNewOsmosis and Water PotentialNewEnzymes in Living Systems (Factors Affecting Rate)NewCore Practical 3: Membrane PermeabilityNewCore Practical 4: Enzyme and Substrate ConcentrationNewNucleic Acids: DNA/RNA Structure and FunctionNewDNA Replication, Mutations and Cystic FibrosisNewInheritance, Genetic Screening and EthicsNew
Cell Structure, Organelles and Microscopy SkillsNewThe Cell Cycle and MitosisNewMeiosis and Sources of Genetic VariationNewFertilisation, IVF and Stem CellsNewCell Differentiation and Tissue OrganisationNewGene Expression and Cell SpecialisationNewEpigenetics: Environment, Gene Switching and PhenotypeNewPolygenic Inheritance and Continuous VariationNewCore Practical 5: Root Tip Squash to Observe MitosisNew
Measuring Biodiversity and Genetic DiversityNewNiche, Adaptation and Natural SelectionNewEvolution, Speciation and Hardy–WeinbergNewClassification and Molecular Phylogeny (Three Domains)NewPlant Cells: Ultrastructure, Starch and CelluloseNewPlant Transport Tissues and Structural SupportNewCore Practical 6: Plant Stem Tissues Under the MicroscopeNewCore Practical 7: Mineral Deficiencies in PlantsNewCore Practical 8: Investigating Fibre StrengthNewCore Practical 9: Antimicrobials and Aseptic TechniqueNewUsing Biology to Manage Resources: Drug Testing, Zoos and Seed BanksNew
Ecosystems, Communities and Food WebsNewFactors Affecting Distribution and AbundanceNewCore Practical 10: Ecology Fieldwork (Quadrats, Transects, Abiotic Factors)NewSuccession and Climax CommunitiesNewPhotosynthesis: Light-Dependent and Light-Independent ReactionsNewCore Practical 11: Hill Reaction and Photosynthesis RateNewEnergy Transfers: NPP, Biomass and Trophic EfficiencyNewClimate Change Evidence and Anthropogenic CausesNewClimate Change Impacts, Models and Mitigation (Carbon Cycle Links)NewCore Practical 12: Temperature and Enzyme ActivityNewCore Practical 13: Temperature and DevelopmentNew
Forensics: Time of Death and DecompositionNewMicroorganisms, Decomposition and Carbon RecyclingNewDNA Profiling and Genetic RelationshipsNewPCR and DNA AnalysisNewCore Practical 14: Gel Electrophoresis of DNA FragmentsNewPathogens: Bacteria, Viruses and TransmissionNewBarriers, Inflammation and PhagocytosisNewAdaptive Immunity: Antibodies, Memory Cells and VaccinesNewAntibiotics, Resistance and Infection ControlNewCore Practical 15: Testing Antibiotics on BacteriaNew
ATP Demand, Muscle Contraction and PerformanceNewAerobic and Anaerobic Respiration in MuscleNewCore Practical 16: Measuring Respiration RateNewGas Exchange and Oxygen Transport During ExerciseNewControl of Heart Rate and Ventilation (Negative Feedback)NewECGs and the Heart’s Electrical SystemNewCardiac Output, Blood Pressure and Athletic PerformanceNewThermoregulation and Homeostasis in ExerciseNewCore Practical 17: Spirometer Data and Exercise ResponsesNewSports Science: Training, Recovery, Technology and DopingNew
Neurones and Action PotentialsNewSynapses, Neurotransmitters and DrugsNewThe Eye and Vision: Retina to Visual CortexNewBrain Regions and Brain ImagingNewCoordinating Responses: Sensory Processing and ReflexesNewBrain Development: Nature vs Nurture EvidenceNewLearning, Memory and PlasticityNewCore Practical 18: Investigating HabituationNewBrain Chemistry and Parkinson’s DiseaseNewHuman Genome Project, Genetic Engineering and BioethicsNew
